github.com/hashicorp/packer@v1.14.3/website/content/guides/automatic-operating-system-installs/index.mdx (about) 1 --- 2 page_title: Automatic OS Installs 3 description: |- 4 Learn how to use preseed, kickstart, and autounattend files to automatically 5 answer installation questions and enable Packer to connect to your instance. 6 --- 7 8 # Automatic OS Installs 9 10 If you are building from a brand-new and unconfigured operating system 11 image, Packer will need you to perform the operating system install before it 12 can connect to and configure your image using its provisioners. Most operating 13 system distributions have a mechanism for performing the normally-interactive 14 installation in an automated way. For Debian operating systems, this is done 15 using a preseed file; for Windows, it's done using an Autounattend.xml. We have 16 compiled some simple guides here for common operating system distributions. 17 18 These guides are meant to give you a quick introduction to how to use automated 19 installation answer files in order to perfom those installs; we don't mean to 20 be a comprehensive guide on each operating system, but we hope to give you 21 enough context to be able to more easily find any further information you need. 22 23 Refer to the instructions for your operating system.